Oil filter



J. K. DELANO Aug. 25, 1936.

OL FILTER Filed Dec. 2, 1955 Snventor dames K, fDelano Gttorneg Patented Aug. 25, 93

Unirse STATES ATENT OFFICE OIL FILTER James K. Delano, New York, N. Y. Application December 2, 1933, Serial No. 700,667 6 Claims. (Cl. 210165) containing a renewable packing or cartridge of ,suitable filtering material through which the oilows and within which the smaller particles of dirt and sediment are deposited, but in the usual style of oil filter now in use it has been found that the fillers of iiltering material soon become saturated with the sediment which prevents the free oil from passing therethrough, thus rendering the cartridge useless in a short time.

It will readily be seen that when the oil containing dirt, sediment and other foreign matter is directed in a direct manner against the filtering material, said material will collect upon its surface all of the particles of Vdirt and sediment and will become pasted or coated with the same in such a manner that the oil can not pass therethrough or through the filtering material, and furthermore this dirt and sediment will be carried up into the filtering material and render the same useless in a short time.

The object of the present invention is to provide mechanical means whereby the inward flow of the oil is iirst diverted from the filtering material to a sediment chamber where it is carried Ythrough a spiral path for a considerable distance in order to allow the sediment to settle to a sump,

and also for the flow of oil to lose its speed of travel so that it may readily be freed from the heavier particles of dirt and sediment which will Yfall downward into the sump, while the oil will rise up into and through the filtering material with a slow natural iiow or speed of travel, and in this way the oil is rst freed from the excess dirt and sediment before it enters the filtering material, thus preventing the filtering material from becoming clogged with the excess dirt and v sediment and so prolonging the life of the cartridge. Y

In carrying out my invention, I employ a container or casing which is formed with a removable top and has a conical-shaped lower end in which is mounted adjacent the bottom a drain cock; this container is mounted in some suitable manner adjacent the engine'and is connected in the oil feed or circulating line to which it is connected by an upper and lower pipe connection.

The interior of this container is divided into a filter chamber and a sediment or drain chamber, by two transverse partitions which are spaced apart; the upper one of which is formed with a central opening, and the lower one is formed with a series of small openings arranged adjacent to its outer edge.

To the under face of the lower partition is l secured the upper edge of a spiral cone-shaped conveyor wall which extends downward within said sediment chamber to within a short distance of the bottom thereof.

'Ihe oil inlet or feed pipe enters the bottom of 15 this sediment chamber and is formed with a stand-pipe in axial relation with said chamber and formed with a hooked end, closed and provided with a side outlet discharging the oil within the central coil of the conveyor wall and directing the flow of oil into said coil and the path formed thereby.

In this manner the oil is obliged to travel the path formed between the coils of the conveyor wall which yis of a considerable length, thus allowing suiiicient time within which for the oil to lose its momentum or speed of travel, so that the excess or heavier dirt and sediment will travel downward and drop into the sump; the oil rising and flowing up through the openings in the lower partition and up and through the central opening in the upper partition and up and through the filtering material contained in the iilter chamber.

With these and other obj ects in view, my invention consists in certain novel construction and.

Figure -1 shows a vertical sectional view of an oil filter embodying my invention.

Figure 2 is a cross sectional view of the same, taken on the line 2 2 of Figure 1, looking upward and showing the spiral conveyor wall.

Figure 3 is a diagrammatic view to show the application of the device to an engine.

Referring to the drawing:

The iilter comprises a container or casing l0 that may be of any desired shape in cross section, and of any size and material and provided.

with suitable means for mounting the same to or adjacent to the engine and its oil supply.

This container is formed with a flanged top edge l I upon which is mounted a detachable cover l2, which is held in place by the yoke I3 and locking screw I4 in the usual manner.

The interior of the container isdivided longitudinally into an upper filter chamber l5 :and a lower sediment and drain chamber I6 by the upper partition l1 which is formed with a central opening I8, arid the lower partition I9 'which is formed with a series of openings 20 adjacent its edge, and is spaced from the upper partition;v Il by the ring or spacer 2l; this pair of partitionsl I1 and I9 may be either attached to the containerV` i8 or mounted therein in a removable manner for the purpose of cleaning. I To the under surface of a spiral conveyor wall 22, of which the inner coils are longer than the outer coils to conform to the conical sediment chamber i6 and 'which' extend downward therein to within a short distance of vthe bottom thereof.

Within the upper end ofthe container l0 is placed a perforated cap 23 which rests upon the cartridge 2d which is composed of the iiltering material and which'is intended to be renewed from time to time.

The upper end of the container lll is connected in the oil pipe line by a return pipe 25 leading to the lower part of the crank case 26 as shown in Figure 3, and the bottom of the conical sediment chamber I6 is connectedy atA its lowest point with the oil feed pipe 21 from a T 28 placed adjacent the oil gage 29.

This oil feed pipe 21 is connected to the sediment chamber by a nut 3B and isprovided with a chamber I6 within the inner coil ofthe conveyor 22 and'is formed with a closed end and a side opening 32 formed in a hooked end 33 in such a manner as to direct the flow of oil into the path formed by said spiral conveyor 22,v inr such a f manner that the ow *ofl oil will follow said conveyor path losing its speed as it travels'and'allowing the excess dirt and sediment to drop to the sump 34 and be drained off through thie drain cock, while the oil will rise up through Ytheopen- IQ, between said partitions ings 2B in the partition i9 and ll and up through th'e opening I8 into and up through the ltering material 24, the cap K 23 and out through the pipe 25 to the engine crankecase 26.

Having thus described my invention, what I claim as new and desire to secure by Letters Pat- "ent, isz- 1. In an oil lter, the combination with a casing adapted to be connected in a circulating oil system and formedk with an upper lter chamber and a lower sediment chamber, a doublevwalled partition mounted b'etweensaid chambers having a central opening in its upper wall and peripheral openings in its lower/wall for the purpose of interrupting the direct flow of oil from the sediment chamber to the; lt-er chamber, said partition havinglintimate peripheral contact with the casing wall, renewal ltering material contained in said filter chamber, a helical-shaped spiral conveyor wall formed on the under Surface of said partition' forming a path for said oil and means for directing said spiralpass'age. I

2. In an oil filter of the class described, the combination withA a casing adapted to be contiie partition vIii is se-A cured in some suitable manner suchas welding,

' the central openin'gaxially of the casing.

the entering oil into and through f of the oil from the sediment chamber to the filter chamber, an inverted helical-shaped conveyor depending from the lower face of the lower partition wall and extending into the sediment chamber', and means for delivering the oil from the `circulating system into Vthe center of the helical-Y shaped conveyor adjacent to the lower partition V wall;

, 35 In a filter of the class described, the combination with a casing, of a double walled partition 20 in the casing having ir'itir'nate peripheral contact with the casing wall, said partition dividing the casing transversely into a receiving'V chamber and a sediment chamber, the 'wallsof the partition d'ening a fluid receiving chamber, an inverted 25 conical spiral wall depending from the partition into the sediment lchamber to provide aspiral passage for the fluid, an inlet -pipe discharging fluid'centrally of theY spiralpassaga the lower wall of the partition having' peripheral inlet openings therein aifording fluid communication be-v tweenthe sediment chamber and said second receiving chamber, the upper wall of the-partition having a centrally located discharge opening for directing now of fluid from theY second named 35 receiving chamber axia-lly into the rst named receiving chamber; f

4. In an oil filter of the class described, ythe combination with a casing adapted to be connected with a' pressure oiling system, of a trans# verse partition having'intimate contact with the casingwall todivide the' sameinto upper and lower chambers, said partition comprising upper and lower walls dening a -iiuid receiving chamber therebetween, theupper 'wall having a central-145 opening therein, andv the lower wall having a Y series-of peripheral openings, an inverted conical spiral depending romthe lower wall to provide a i,spiral passage, a pipe extending through the bottom of the casing into the'central convolution of the spiral to discharge fluid under pressure therein for passage into thespiral passageV and thence into the iiuid receivingV chamber -dened by the lwalls of the partition for discharge through A5. In an oil filter, 1the combination with acasil'lg, 0f` a, dllbl Walled partition irl the Casing having intii'fnatel Contact with the casing wall'and dividing the casing VAintoV upper andllo'wer chambers', the walls of vthe vpartition being ver't'ically() spaced to define an intermediate iuidreceiving chamberv therebetween, 4the upperr wall of Y the partition having a l central fluid discharge opening therein, 'and airording communication between the upper chamber and the intermediate chamt ber, the lower wallnof the partition having peripheral openings affording Vcommunication between the ylower chamber and the intermediate chamber, and means for conducting fluid under pressure into the lower chamber, and through the l-inlet''IO openings into the 'intermediate Chamber y:for fdischarge therefrom through the central opening agiaiiyi-nio the upper chamber. ,Y Y Y 6K In 'a niter of the class described-the combination With a casing, '0f-'fa 'partition 'therein vtlli'fid j"75,

lio

ing the casing into a fluid receiving chamber and into the innermost convolution of the wall for a sediment chamber, said partition having a uid discharging fluid under pressure into the spiral receiving chamber therein and having intimate passage, and means for conducting uid from the peripheral engagement with the casing Wall, a passage in circuitous path through the chamber convolute Wall on the partition depending into the of the partition for discharge axially into the 5 sediment chamber to provide a spiral passage, a casing.

pipe extending into the sediment chamber and JAMES K. DELANO. 

